So i had my car out the other night and got stopped for not having any running tail lights. So i look into it and my headlight switch is busted, so i replace it (this is an '85 by the way). So i check the fuses and the #4 fuse which is labeled as the external/instrument cluster fuse is blown so i replace it and bingo, i've got tail lights. So i start the car up and warm it up and turn them back on and the fuse blows. Now, every time i turn the lights on it blows the fuse and i'm totally lost